• 52 Videos, Slides, Films

• 46 History
• 41 World politics
• 13 History, Modern
• 11 Politics and government
• 7 Democratic National Convention (1968 : Chicago, Ill.)
• 7 Riots
• 7 Social conditions
• 6 Economic conditions
• 5 Conservatism
• 5 Postwar reconstruction
• 5 Social sciences
• 4 Communism
• 3 Clinton, Bill, 1946-
• 3 Cold War
• 3 World War, 1939-1945
• 2 Europe
• 2 Foreign relations
• 2 Nixon, Richard M. (Richard Milhous), 1913-1994
• 2 Political activists
• 2 Science
• 2 Technology
• 2 United States. Army
• 1 Abzug, Bella S., 1920-1998
• 1 Aeronautics
• 1 Agreement on Ending the War and Restoring Peace in Viet-Nam (1973 January 27)

• 41 Films Media Group
• 41 Films for the Humanities & Sciences (Firm)
• 13 National Archives and Records Service
• 12 WPA Film Library
• 8 Dallas TeleLearning (Firm)
• 8 Dyer, Julia
• 6 Prelinger Archives
• 5 Cabrero, Stephen
• 3 Looks Distribution GmbH
• 2 Gaumont
• 2 Makematic (Firm)
• 2 Universal-International (Firm)
• 1 ClickView (Firm)
• 1 Crash course world history
• 1 DoGoodery (Organization)
• 1 Green, John
• 1 Muller, Stan
• 1 Northern Ireland Screen (Firm)

• 52 English

• 48 United States
• 2 Europe, Eastern
• 2 Soviet Union
• 1 Berlin (Germany : West)
• 1 Berlin (Germany)
• 1 China
• 1 Europe
• 1 Germany
• 1 Hiroshima-chō (Japan)
• 1 Syria
• 1 Yucca Flat (Nev.)

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